FRESH STYLEMini calculator with key buckle is designed with wimple style, fresh and fashionable. You can hang the mini calculator on your backpack, handbag or keychain, pocket calculator is very beautiful. SILICONE BUTTONMini calculator with key buckle is designed with silicone button. Silicone button is very soft and comfortable. At the same time it is simple and easy to use, it will bring you a different touch. KEYCHAIN DESIGNKeychain design, mini calculator with key buckle is very easy to wear. You can wear it around you as needed, very cute and simple. Size: Approx. 5.5 * 4 * 0.7 cm / 2.1 * 1.5 * 0.2 inch. 8 BIT DISPLAYMini calculator with key buckle has an 8-bit display. Mini calculator with key buckle is a very nice and sweet gift for colleagues, children and friends. Birthday gifts, suitable for creative learning gifts, school gifts, etc. UNIQUE DESIGNThe design of this mini computer is very simple, not only can it have the function of a calculator, but the unique design can make the mini calculator become your decoration.